81391545

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1327}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 149160960

約数和(自身を除く): 67769415

約数列:

[1, 3, 5, 9, 15, 29, 45, 47, 87, 141, 145, 235, 261, 423, 435, 705, 1305, 1327, 1363, 2115, 3981, 4089, 6635, 6815, 11943, 12267, 19905, 20445, 38483, 59715, 61335, 62369, 115449, 187107, 192415, 311845, 346347, 561321, 577245, 935535, 1731735, 1808701, 2806605, 5426103, 9043505, 16278309, 27130515, 81391545]

約数ペア:

[(1, 81391545), (3, 27130515), (5, 16278309), (9, 9043505), (15, 5426103), (29, 2806605), (45, 1808701), (47, 1731735), (87, 935535), (141, 577245), (145, 561321), (235, 346347), (261, 311845), (423, 192415), (435, 187107), (705, 115449), (1305, 62369), (1327, 61335), (1363, 59715), (2115, 38483), (3981, 20445), (4089, 19905), (6635, 12267), (6815, 11943)]